Questions:
Gmail Email sending code is not working.
Gmail Email sending code error "SMTP connection error using port 25"
Why Gmail email sending code is not working?
Gmail Email sending code is not working.
Gmail Email sending code error "SMTP connection error using port 25"
Why Gmail email sending code is not working?
These days security is an big issue for internet users. You need to update your security with the passage of time. If we take a look on Facebook that we mostly used, is more secure than before because of security reasons. And Facebook don't want their users in trouble by the hackers. Before Facebook accounts were easy to hack. In the same way Gmail, Yahoo, Hotmail etc. But now they upgrade their securities to avoid their customers and users to run into trouble. Before Gmail send options works directly without making any change into your account. But now they have added an extra security layer to the Gmail. Now if you embed Gmail Email sending code that will not work directly. Before making it to work, you need to allow less secure apps to access your account. Because you don't have much security in your program. So for the Gmail it is less secure Connection for Gmail.
For that reason you need to make little changes to your account that is being used to send email.